Clinical trials: Emmetropia
Presbyopia
Vivity IOL: Emmetropia Compared to Monovision.
Current visual outcomes expectations of cataract patients are similar to those of refractive surgery patients. Their desire is to be spectacle independent for far, intermediate and near vision activities.
- Trial name
- NCT05464732
- Testing
- Vivity IOL emmetropia, Vivity IOL monovision
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- Carolina Eyecare Physicians, LLC
Myopia, Dry Eye Disease (DED)
Study of Eye Fatigue From Digital Screens and Its Impact on Visual Performance in People With Normal Vision and Myopia, With and Without Dry Eye Symptoms and Signs
The goal of this observational study is to investigate the effects of eye fatigue induced by screen task on dry eye disease (DED) signs and symptoms, visual performance, and visual behavior in young adults with and without DED…
- Trial name
- RReye (NCT07844408)
- Testing
- Eye Exams, Ocular Biometry and Aberrometry, Wearing a Smartwatch
- Where
- France
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Essilor International
Cataract
Comparison of Two Non- Diffractive Extended Depth of Focus Intraocular Lenses
Intra-individual comparison of the PureSee EDOF IOL with the Acunex Vario EDOF IOL set for emmetropia.
- Trial name
- NCT06607848
- Testing
- Low-Add EDOF IOL, EDOF IOL
- Where
- Austria
- Volunteers
- 40 people
- Sponsor
- Vienna Institute for Research in Ocular Surgery
Visual Function
Comprehensive Evaluation of Visual Function
The purpose of this study is to assess the level of visual functioning in patients with various eye conditions while wearing different types of eyeglasses.
- Trial name
- NCT00894192
- Testing
- Izon Wavefront-guided lenses, Conventional lenses
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- The Chicago Lighthouse
Myopia, Hyperopia
Corneal Epithelial Thickness Mapping by Anterior Segment Optical Coherence Tomography in Patients With Refractive Errors
This study evaluates corneal epithelial thickness using anterior segment optical coherence tomography (AS-OCT) in patients with refractive errors.
- Conditions
- Myopia, Hyperopia, Astigmatism, Emmetropia
- Trial name
- NCT07647146
- Where
- Egypt
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- Sohag University
Laser in Situ Keratomileusis
Patient-Reported Outcomes With LASIK:PROWL-1
This study evaluates a questionnaire designed to measure satisfaction and ophthalmic-related quality of life (QOL)in up to 550 active duty subjects prior to and six months following state-of-the-art laser in situ keratomileusis…
- Trial name
- PROWL-1 (NCT01526291)
- Where
- United States
- Volunteers
- 550 people
- Sponsor
- Food and Drug Administration (FDA)
Myopia
Assessing the Impact of Streetscape Exposure on Children's Perception
The primary objective is to determine how streetscape exposure influences children's visual perception and psychological perception.
- Trial name
- NCT07761949
- Testing
- Virtual simulation of street visual environment exposure
- Where
- China
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Zhongshan Ophthalmic Center, Sun Yat-sen University
Emmetropia, Myopia
Effects of Light on the Choroid and Pupil
Monochromatic light creates longitudinal chromatic aberration, with short wavelength blue light forming a focal point in front of the retina and long wavelength red light forming a focal point behind the retina.
- Trial name
- NCT05852782
- Testing
- White Light therapy, Blue light therapy, Red light therapy
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Houston
No Disease
A Study to Test the Repeatability and Reproducibility in Rod Intercept Time Within the AdaptDx Pro in Healthy Subjects With Normal Vision (FlashForward)
The purpose of this study is to test the repeatability and reproducibility in Rod Intercept (RI) time with two AdaptDx Pro devices in healthy subjects with normal vision.
- Trial name
- FlashForward (NCT07860905)
- Testing
- AdaptDx Pro
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- AdaptDx, Inc.
Laser in Situ Keratomileusis
Patient Reported Outcomes With LASIK: PROWL-2
This study evaluates a questionaire designed to measure satisfaction and ophthalmic-related quality of life (QoL) of 300 civilian participants prior to and three months following state-of-the-art laser in situ keratomileusis…
- Trial name
- PROWL-2 (NCT01655420)
- Testing
- LASIK
- Where
- 5 sites in United States
- Volunteers
- 300 people
- Sponsor
- Food and Drug Administration (FDA)
Refractive Error - Myopia Axial
Axis Length and Its Relationship With Refractive Error in Chinese University Students
To investigate the relationship between axis length (AL) and refractive error. eyes of low hyperopia to emmetropia subjects, comprising eyes with moderate to high myopia (-11.00D ≤ SE ≤ -4.00D) were analyzed in this…
- Trial name
- NCT04666870
- Testing
- myopia or not myopia
- Where
- China
- Volunteers
- 1,901 people
- Sponsor
- Wang Hongxia
Healthy Adult Participants
A Study to Test the AdaptDx Pro Agreement in Rod Intercept Time With the AdaptDx in Healthy Subjects With Normal Vision (FlashBack)
The purpose of this study is to test the AdaptDx Pro agreement in Rod Intercept (RI) time with the AdaptDx tabletop (AdaptDx) in healthy subjects with normal vision.
- Trial name
- FlashBack (NCT07803588)
- Testing
- AdaptDx Tabletop vs AdaptDx Pro
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- AdaptDx, Inc.
OCT Study RNFL and Macular Thickness
Retinal Nerve Fiber Layer Thickness and Macular Thickness in Myopia, Hyperopia and Emmetropia : An OCT Study
The purpose of this study is to investigate the variability of RNFL and macular thickness between myopia , hyper metropia and emmetropia
- Trial name
- NCT05486741
- Testing
- Optical cehernce tomography
- Volunteers
- 450 people
- Sponsor
- Assiut University